Inverted gas-burner.



No. 866,267. PATENTED SEPT. 17, 1907.,

J. DOGRENBOS. INVERTED GAS BURNER.

APPLICATION FILED SEPT. 15,1906

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-UNITED STATES PATENT oFFIoE.

JOHN DOORENBOS, OF KALAMAZOO, MICHIGAN, ASSIGNOR TO NATIONAL GAS LIGHT- COMPANY, A CORPORATION. OF MICHIGAN.

INVERTED GAS-BURNER.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed September 15, 1906- Serial No. 334,704.

To all whom it may concern:

Be it known that 1, JOHN DOORENBOS, a citizen of the United States, residing at Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented a new and useful Improvement in Inverted Gas-Burners, of which the following is a specification.

The object of my invention is to provide a novel construction, in matters of detail, of a gas-burner of the inverted type, to produce thereby the advantages hereinafter stated.

My invention is illustrated in the accompanying drawing, in which Figure 1 is a view in elevation of an inverted gas-burner provided with my improvements, the view showing the globe-supporting ring and globe in sectional elevation; and Fig. 2 a broken view of the same in sectional elevation.

Referring to the drawing, 4 represents a bracket, secured centrally upon. the down-turned end of a gaspipe 5, shown to be connected with a valve-equipped supply-pipe 5 The bracket illustrated is stamped from sheet-metal and comprises an annular central bearing-portion 6 and three goose-neck shaped or curved arms, 7, extending upwardly and outwardly from the part 6 and provided in their outer, downwardly projecting ends with threaded set-screw openings 8. The bearing 6 fits at its opening about the end of the pipe 5 against a shoulder 9 thereon and is secured to the pipe, as by upsetting the end of the latter against the under surface of the hearing. A mantle-support 10, also of sheet-metal, comprises a head-plate 11 provided with a central opening 12 and with a circumferential series of depending arms 13 having on their lower ends lateral extensions 14, all similarly directed and provided with upturned extremities 14*, and on which bear the outwardly projecting lugs 15 of the mantle carrying and seating ring 16. This ring is commonly provided on mantles for use in connection with the inverted type of gas-burner, to dependingly support the mantle, under the burner-tip, at the inwardly projecting lugs 15, and also to support the mantle at the lugs 15 in the containing-box in which it is packed for sale. The burner-tip 17 is provided with a gasoutlet opening 18 at its lower end and with an annular outer flange 19 about its upper end. The tip extends through the opening 12 in the mantle-support and seats at itsflange about the upper edge of said opening. The mantle-support and tip are secured to the bearing 6 by cut-out lugs 20 on the head-plate 11 passed through slots 21 provided in the bearing 6 and upset against the upper surface of the latter, thereby securely clamping the burner-tip at its flange between the bearing and head-plate of the mantle-support.

A globe-supporting ring 22 is secured to the bracket 4 to encircle it, by set-screws 23, passing at intervals through the ring into the threaded openings 8 in the curved arms 7. These set-screws serve the twofold purpose of thus securing the ring in place and of carrying the globe 25 by engaging at their inner ends the globe-flange 24 in a manner to releasably suspend the globe in the ring. The globe enters with its flangeportion into the sockets 7 formed by thebracketarms and into which the inner ends of the set-screws project to cross the plane of the globe-rim and thus support the globe in the fixture.

To adjust a mantle 30 in place, the lugs 15 of its carrying-ring (usually formed, by molding, of a suitable preparation of magnesia) are introduced-between the depending arms of the mantle-support far enough to bring the lugs above the seating-portions ofthe arms, whereupon the mantle is turned to register these lugs with the seating-portions, which then receive the lugs by releasing the mantle to permit it to drop upon the support; and, to remove the mantle, it is turned in the opposite direction and freed from the seating-arms to register the lugs 15 with the spaces between the arms preparatory to withdrawing the ring 16 from the support.

It will be observed that my improved construction provides for seating the mantle about the exterior of its carrying ring 16, at the outwardly projecting lugs 15, upon the depending arms of the mantle-support. Thus the material advantage is afforded of providing ample air-space about the burner-tip between it and the mantle, for a copious supply of combustion-promoting air to the flame, whereby the light is improved, economy in gas-consumption ensues, and, incidentally, because of complete consumption of the carbon constituent of the burning gas, no deposit of carbon takes place in the air-space that would tend to obstruct the air-supply. Moreover, the described construction is peculiarly simple, rendering my improved device comparatively inexpensive to manufacture and durable.

What I claim as new and desire to secure by Letters Patent is:

1. In an inverted gasburner, the combination with the gas-pipe; of a bearing secured to the end of the pipe and provided with slots, a bracket comprising arms extending from said bearing, said arms afiording means for the attachment to the bracket of a globe-supporting ring, a mantle-support comprising an annular head-plate provided with depending seating-arms for the mantlering lugs, lugs projecting from the upper face of said plate into and fastened in said slots, and a flanged nipple at the end of the pipe seated at its flange in the opening of said head plate and confined between said head-plate and hearing.

2. An inverted gas-burner comprising, in combination with the gas-pipe, a sheet-metal bracket formed with an annular slotted bearing surrounding and secured to the end of said pipe and provided with substantially gooseneck shaped arms containing set-screw openings in' their endp0rtions and forming globe-flange-receiving sockets, a globe'supporting ring encircling said arms, set-screws pass ing through said ring and arm-openings into said sockets, a mantle-support comprising an annular head-plate provided with lugs entering and secured in the slots of said bearing, and having depending arms terminating in Iateral IO extensions forming seats for the lugs of a mantlecarrying ring. and a flanged nipple seated at its flange in said headplate and confined at the flange between said headplate and bearing.

JOHN DOORENBOS.

In the presence of- L. HEISLAR, J. H. LANDES. 

